Machine for shaping the edges of sheet material



Nov. 15, 1927.

r J. o. OLSON momma FOR SHAPING THE EDGES 0F SHEET MATERIAL Filed July 6, 1925 4 Sheets-Sheet l Nov. 15,1927. 1,649,613

J. O. OLSON MACHINE FOR SHAPING THE EDGES 0F SHEET MATERIAL Filed July 6. 1925 4 Sheets-Sheet 2 John 0. Olson. 59

(1 forneys.

Nov. 15, 1927. 1,649,613

J. o. OLSON MACHINE FOR SHAPING THE EDGES OF SHEET MATERIAL Filed July 6. 1925 4 Sheets-Sheet 3 Nov. 15, 1927.

J. o. OLSON MACHINE FOR SHAPING THE EDGES OF SHEET MATERIAL Filed July 6, 1925 4 Sheets-Sheet 4 Inventor: To/1 h 0 0180/2. By MW flfi'ornegs Patented Nov 15, 1927.

UNITED STATES JOHN OTTO OLSON, OF ST. PAUL,

MINNESOTA, ASSIGNOR T0 SPIRAL RADIATOR COM- PANY, A CORPORATIOH O15 ARIZONA.

MACHINE FOE SHAPING EDGES 0F SHEET MATERIAL.

Application filed July 6,

My invention relates to machines for shaping the edges of sheet material. It relates more particularly to machines for shaping the opposite edges of metal sheets for male ing spiral radiator chambers by the process disclosed in my Patent Number 1,560,719, dated November 10, 1925. An object of the invention is to provide a machine of this character, having various adjustments, to provide for different widths and thicknesses of the sheet material whose edges are to be shaped. Another object is to provide a 1118- chine having shaping rolls which may be separated to permit insertion of the edges of the sheet material after which the rolls may be brought closer together to perform the shaping operation.

The full objects and advantages of my invention will appear in connection with the detailed description thereof, and the novel features embodied in my inventive idea will be particularly pointed out in the clalms,

In the accompanying drawings wh ch illustrate a practical embodiment of my nivention, Fig. 1 is a side elevational view of the machine. Fig. 2 is a view in vertlcal section on the line 2-2 of Fig. 1. Fig. 3 is a view in vertical section on the line 8-8 of Fig. 1. Fig. 1 is a view in vertical section on the line t t of Fig. 3. 5' is a view similar to Fig. 4 showing the shaping rolls moved into shaping position. Fig. 6 is a view in vertical section on the line 6-.6 of Fig. 2. Fig. 7 is a view in horizontal section on the line 7-7 of Fig. 2. 8 is a view in vertical section on the line 8-8 of Fig. 1. Fig. 9 is a view in horizontal section on the line 9-9 of Fig. 1.

As shown in the drawings, I provide a base 10 a portion of which has dove-tail edges 12 upon which fit the dove-tail edges 14 of a sliding support 16, as best shown in Fig. 8. A standard 18 is secured to one end of the base 10, while a second similar standard 20 is secured upon the sliding support 16. As will be understood from Figs. 7 and 8, the standards 18 and 20 are roughly I shaped in cross-section, and consist of two end members connected by webs 22 and 24 respectively. As best shown in Figs. .1 and 7, a drive shaft 26 positioned near the base is mounted in bearings formed in the end portions of the two standards. Outside of the standard 18, a driving pulley 28 and a 1925. Serial No. 11,538.

gear 30 are secured to the shaft 26, and this shaft is provided with a longitudinal groove 32 into which fits a projection formed within a gear 3a mounted outside of the standard 20, and having a hub 36 extending thru an end member of the-standard. A collar 38 secured on the end of the hub 36 holds the gear 34 in place while permitting it to to tate. A screw threaded shaft 40 is held at one end in the standard 18 by means of collars 42 and 4 1-. A bevel gear 46 screw threadedly engages the shaft 40 and has a hub 48 extending thru an end member of the standard 20. A collar 50 secured on the end of the hub 48 holds the gear 16 in place while permitting it to rotate. The bevel gear 46 meshes with a bevel gear 52 secured to the lower end of an upwardly extending shaft 54: rotatably mounted in bearings on the standard 20. A hand wheel 56 is secured to the upper end of the shaft 54. Upon turning this hand wheel in one direc tion or the other, it is apparent that the standard 20 will. be moved toward or away from the standard 1.8. The gears 30 and 34 mesh respectively with intermediate gears 58 and 60, secured to shafts 62 and 64 ournalled in the standards 18 and 20. The gears 58 and mesh respectively with gears 66 and 68 secured to shafts 70 and 72, journalled in the upper ends of the standards 18 and 20. Secured to the shaft 7 O is a gear 745 meshing with a gear 76 secured to a shaft 78. It will be understood that a similar pair of gears are interposed between the shaft 72 and a shaft 80 which corresponds to the shaft 78. Cooperating shaping rolls 82 and 84 are secured respectively to the inner ends of the shafts 70 and 78 while cooperating shaping rolls 86 and 88 are secured respectively to the inner ends of the shafts 72 and 80. The shafts 78 and 80 are mounted in bearings formed in dependent portions of blocks or head members 90 and 92 pivotally attached by pins 94 and 96 as best shown in Fig. 3 to a pair of arms 98 and a pair of arms 100 respectively which at their lower ends are pivotally attached by pins 102 and 104 to the webs 22 and 2a which are cut away at their upper ends to provide space for the gears 74 and 76. The arms 98 and 100 are extended above the pins 94; and 96 as best shown in Fig. 3 to receive the trunnions 106 of blocks 108 in which rods 110 are rotatabl held by collars 112. Rods 110 are provi ed at one end with hand wheels 114 and are screw threaded for a considerable extent at the other ends and passed thru openings in bars 116 having trunnions 118 at their ends mounted in upwardly extending arms of substantially U shaped members 120 secured to the upper ends of the standards 18 and 20. By turning the hand wheels 114, the upper rolls 84 and 88 will be adjusted with relation to the lower rolls 82 and 86. A shaft 122 is journalled in bearings formed in the lower portions of the standards 18 and 20. This shaft is provided with a longitudinal groove 124 into which fits a projection formed within an eccentric 126 placed adj acent the standard 20. A second eccentric 128 iskeyed to the shaft 122 adjacent the standard 18. The eccentrics 126 and 128 are surrounded by rings 130 to which are secured the lower ends of pairs of rods 132 and 134 whose upper ends are secured to cross bars 136. The rods 182 and 134 are provided with bends as shown in Fig. 2 so that a considerabledegree of rcsilienc t is provided. Rods 138 pass rotatably thru these cross bars being held in place by hand wheels 140 secured to the rods above and collars 142 secured to the rods below the cross bars. The lower portions of the rods 138 are screw threaded and engage screw threaded open ings in the ends of the blocks 90 and 92 which are adjacent the shaping rolls. By turning the hand wheels 140, the upper rolls will be adjusted toward or from the-lower rolls. An arm 144 is secured to the shaft 122 and this arm is connected by a link 146 with a hand lever 148 pivotally'attaehed at its lower end to the base. A projection 150 is secured to the web 22 and this projection contains a depression as shown in Fig. 9 in which the hand lever is normally held so as to keep it'in the dotted line position shown in Fig. 3. When the hand lever is pulled into the full line position, it isapparent that the eccentrics 126 and 128 will be rotated in a direction which will lift the rods 132 and 134 whereby the upper rolls 84 and 88 will be lifted into the position shown in Figs. 1 and 4 so that the edges of the sheet metal S may be inserted between the upper and lower rolls. Upon moving the hand lever back to its normal position, the upper and lower rolls will be brought closer together into the position shown in Fig. 5 so that their rotation will shape the edges of the sheet metal as shown in this figure. Gauge plates 152 are positioned adjacent the rolls. The arrangementof one of these gauge plates is clearly shown in Fig. 6 in which a rod 154 extends thru the end wall of the standard 18. The front end of this rod is provided with a head which is countersunk in the plate 152. The rear portion of the rod is surrounded by a coiled spring 156 have shoulders 162 near their front ends engaging the rear surface of the gauge plates and their rear ends have nuts164 secured thereto by means of which the rods may be turned to adjust the gauge plates in and out. The springs 156 hold the gauge plates back against the shoulders 162 and retain them in their adjusted positio' The operation and advantages of my in vention will be readily understood in connec tion with the foregoing descriptionf By means of the hand wheel 56 the distance bctween the two standards may be readily the sheet varied according to the width of metal which is to be shaped. The adjustable gauge plates 152 provide for small variations in the width of the sheet metal. hen

the hand lever 148 is brought into forward position, the upper rolls are moved upwardly so that the edges of the sheet metal may be inserted. When this lever is pushed backwardly, the upper rolls are brought to till ward the lower rolls and the lever is held in 1 place by engagement with the depression in the projection 150. By means of the hand wheels 114 and 140, the distance between the upper and lower rolls may be varied accord ing to the thickness of the sheet metal. When the hand wheels 140 are turned, the head members and 92 are swung on the pins 94 and 96 respectively as pivots. This tends to bring the upper rolls out of proper position with relation to the lower rolls since the outer ends of the upper rolls move thru a larger arc than their inner ends. to counteract this, the head members are swung on the pins 102 and 104 as pivots by turning the hand wheels 114 in the proper direction. Referring to Figs. 4 and 5 it will be assumed that it is desired to provide for thicker sheet material. The hand wheel 140 will be turned in the proper direction to lift the upper roll 84 by swinging the head member 90 on the pin 94. The hand wheel 114 will also be turned in the proper direction to swing the head member toward the left on the pin 102 as viewed in these figures.

, These two movements will bring the rolls into proper relation for shaping thicker material on account of the fact that the movement of the upper roll when moving on the pin 102 is on a larger arc than when moving on the pin 94. The two rolls are therefore by the above described apart but in parallelism with each other. If thinner material is to be shaped, the reverse movements will be made to effect the adj ustment. y it i I claim: i

1. A machine for shaping the edges of In order I operation left farther sheet material comprising supporting means, lower shaping rolls carried by said supporting means, head members pivotally attached to said supporting means, upper shaping rolls cooperating with said lower rolls and carried by said head members, a shaft mounted in said supporting means, a hand lever connected to said shaft, eccentrics secured to said shaft, connections between said eccentrics and said head members whereby said upper rolls may be moved away from said lower rolls to permit insertion of the edges of the sheet material, and means for rotating said rolls.

2. A machine for shaping the edges of sheet material comprising two standards spaced from each other, arms pivotally attached at their lower ends to said standards respectively, head members pivotally attached to the upper ends of said arms, a shaft mounted in each of said standards, a shaft mounted in each of said head members, said shafts carrying lower and upper cooperating shaping rolls respectively, means for swinging said head members and arms conjointly on the pivotal attachments of the latter, means for swinging said head mem bers on their pivotal attachments to said arms, and means forrotating said shafts.

3. A machine for shaping the edges of sheet material comprising two standards spaced from each other, arms pivotally attached at their lower ends to said standards respectively, head members pivotally attached to the upper ends of said arms, a shaft mounted in each of said standards, a shaft mounted in each of said head members, said shafts carrying lower and upper cooperating shaping rolls respectively, bars carried by the upper ends of said standards, rods having screw-threaded engagement with said bars, blocks carried by the upper ends of said arms and in which said rods are rotatably held, hand wheels secured to said rods for turning the latter, cross bars mounted above said head members, rods rotatably mounted in said cross bars and having screw-threaded engagement with said head members, hand wheels secured to said rods for turning the latter, and gear mechanism for rotating said shafts.

In testimony whereof I hereunto afiix my signature.

JOHN OTTO OLSON. 

